April 21, 2015

Homework Help: Science

Posted by Anjan on Friday, December 31, 2010 at 6:36pm.

1. Describe how the magma is generated for volcanoes parallel to a subduction zone.
2. What two factors result in a volcano at a plate boundary?
3. Why are volcanoes found at mid-ocean ridges but not at ocean trenches?
4. What causes a hot spot in the mantle?
5. Explain why hot spot volcanoes appear as volcanic chains in the middle of an oceanic plate.
6. How are the terms “focus” and “epicentre” linked?
7. Draw a graphic organizer to compare the three categories of earthquake: shallow-focus, intermediate-focus, and deep-focus.
8. (a) At what type of plate boundary are deepfocus earthquakes likely to occur?
(b) What causes them?
9. The three largest earthquakes in recorded
history have occurred in subduction zones. How
does the plate tectonic theory explain this?
Consider the processes that occur along all three types of plate boundaries.
10. (a) What are the two main types of seismic waves?
(b) Explain the difference between the two types.
11. Which type of seismic wave travels farthest through Earth? Why?
12. In 2005 and 2006, several major earthquakes occurred in Pakistan and Iran, located to the
north and west of India.
(a) Why does the theory of plate tectonics support the occurrence of earthquakes in these countries?
(b) What type of plate boundary exists near these two countries?

Answer this Question

First Name:
School Subject:

Related Questions

sci - Describe how plate tectonics is related to the formation of volcanoes. · ...
Sceince - 3. Which of the following physical features are caused by plate ...
Science - Are all of these true? 1. Ocean ridges are not associated with orogeny...
Science - California's volcanoes formed as the result of what type of plate ...
Overdue Science Lesson, Very Urgent. - 1: How does sea-floor spreading occur? A...
Geological Events - Two factors that result in a volcano at a plate boundary are...
Ocean - Locations of hot spots remain fixed for a long time. As plates move ...
volcanoes - what supplies do you need to make a volcanoes lava if you were to ...
science - 1. Why do earthquakes occur along the San Andreas Fault? a. Two plates...
Science - what is the source of the magma that fuels the island arc complex? a. ...